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Buy Polyethylene (PE) Liners

Date Posted :	2009-03-13
Valid until :	2009-03-27

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A. Polyethylene liners

1. Resin: New, first-quality material; compounded and manufactured specifically for the purpose of producing the specified geomembranes; all of the same type; do not blend with recycles or seconds. The finished compound shall be uniform in color, thickness, size and surface texture.

2. Thickness: 80-mil.

3. Material: high density polyethylene (HDPE) not more than 2% by weight recycled polymer; weight of processing aids, antioxidants and other additives other than carbon black, not more than 1% by weight of finished geomembrane and not more than 3% by weight with carbon black; produced in the United States; no holes, pinholes, bubbles, blisters, gels or undispersed resins and undispersed carbon black; no contamination by foreign matter; no nicks and cuts on roll edges; supplied in rolls; minimum panel width not less than 5 m; identify each roll labeled indicating thickness, length and width; manufacturer, plant location; meeting the following specifications:

Test Test Designation Requirement
Sheet Thickness ASTM D 1593 para. 8.1.3 30 mil with
minimum
average 30 mils
Density ASTM D 792 Method A >0.940 g/cm3 (HDPE)
Tensile Strength at Yield ASTM D 638 > 50 to 84 lb per in. width
Tensile Strength at Break ASTM D638 > 90 to 120 lb per in. width
Elongation at Break ASTM D 638 > 500%
Elongation at Yield ASTM D 638 > 10%
Low Temperature Brittleness ASTM D746 Procedure B <-40 deg F
Tear Resistance ASTM D 1004 Die C > 15 lb
Environmental Stress Cracking ASTM D1693 >500 hours without failure
(as modified by NSF)
Water Absorption ASTM D570 <0.1%
Volatile Loss ASTM D 1203 <0.1%
Dimensional Stability (each ASTM D 1204 212 , 3% max. change
direction) 15 min.
Carbon Black Content ASTM D 1603 2 to 3%
Carbon Black Dispersion ASTM D 3015 A1, A2 or B1

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